Going through the Settings screen every time you want to turn an accessibility feature on or off can be tedious, so to simplify this process, you can access these features by triple-clicking the Home button. This gives you the option of turning on (or off) VoiceOver or the White on Black feature.
If you prefer, you can also make triple-clicking the Home button display a list of options so you can turn different accessibility features on or off. To define triple-clicking the Home button, follow these steps:
From the Home screen, tap Settings. The Settings screen appears.
Tap General. The General settings screen appears.
Tap Accessibility. The Accessibility settings screen appears (shown earlier in Figure 36-1).
Tap Triple-click Home. The Home settings screen appears, as shown in Figure 36-6.
Tap an option such as Toggle VoiceOver. If you choose Ask, triple-clicking the Home button displays a dialog that gives you a choice of which accessibility feature to turn on or off, as shown in Figure 36-7.
Press the Home button.